Stove and range



E'. 0. HOWLE AND 1. E. LEONARD.

STOVE AND RANGE. APPLICATION FILED JULY 3, 1920.

Patented Oct. 11, 1921.

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0000oooooooooooooooooooom E. O. HOWLE AND J. E. LEONARD. STOVE ANDRANGE.

APPLICATION FILED JULY 3, 1920.

1,393,129, Patented Oct. 11, 1921.

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STOVE AND BAIEGE.

Application filed July 3.

To aZZ 107mm it may concern:

Be it known that we, Ennnsr O; l-IowLn, a citizen of the United States,residing at Nashville, in the county of Davidson, State of Tennessee,and 'JOSEPI-I E. LEONARD, a citizen of the United States, residing atCedar Rapids, in the county of Linn and State of Iowa, have inventedcertain new and useful Improvements in Stoves and Ranges, of which thefollowing is a specification.

This invention relates'to stoves and ranges, more particularly those ofthe elevated oven type, and the object of the invention is to providefor the use at will, and without changing adjustments or shiftingapparatus, of either solid or gaseous fuel for combustion, and fortheheating, more especially, of the oven.

The invention is fully disclosed in the description and claimsfollowing, reference beinghad to the accompanying drawings, in whichFigure l is a central section from front to back, in a vertical plane ofthe bottom parts of an oven containing our improvements. Fig. 2 is asimilar section, but in a plane transverse to that indicated in Fig. 1.Fig. 3 is a plan view of the parts below the line 3--3 of Fig. 2 withthe bathe-plate removed. Fig. i is a plan view of the front side of thebattle-plate. F'g. 5 is a fragmentary front elevation of a rangeincluding this invention, showing the oven, top portion of the rangeproper, and connecting flue.

In the drawing, the numeral 5 denotes the.

outer shell or casing, and 6 the inner cham ber of an oven. The outerchamber conimunicates by a flue (not shown) which at its upper endconnects with the collar '7, and at the lower end is supposed to connectwith a similar collar on the stove, not shown. The products ofcombustion from the stove or range, which is adapted to burn solid fuel,pass through the flue and the spaces between the outer and innerchambers of the oven, and thence up the chimney through a similarcollar, not shown, at the top of the oven as indicated by theblack-faced arrows. lfhe oven in this respect is of familiarconstruction, and need not be specifically described.

Where gas be conveniently led to the stove it is found to be verydesirable to arrange the stove for the use of both fuels,

Specification of Letters Patent.

Patented Get. 11, 1921.

Serial No. 393320.

solid fuel for the more continuous and heavy service, as in winter, andgas for the lighter and more intermittent service. Our improvementembodies such a construction as applied to an oven, and the same willnow be described.

Heferrin to Fi g. 2, it will be seen that the bottom of the innerchamber is convened from side to side, the inclined wings 8 beingpreferably joined to a central, trough-like casting 9, which crosses theflue above mentioned, and serves to deflect the products of combustionto each side of the oven as in licated. A little abovethis bottom ismounted a baffle-plate 10, which forms the'working bottom of the ven.This is preferably made of sheet-iron, but is reinforced by a casting11, centrally concaved at 12, and with upwardly inclined sides fastenedto the main sheet. The bathe-plate is considerably narrower than theinner chamber of the oven, and is supported principally at the front byan upward extension 14 of the oven bottom, and at the back and cornersby inwardly extending lugs or flanges 15. This leaves openings at 16 forthe products of gaseous combustion to pass through and directly into theoven. The bathe-plate is also preferably perforated 17 for conveniencein lighting the gas. Gutlets at'18 at the rear, and near the bottom ofthe oven permit the outflow of the hot air, after it has flowed to thetop of the oven, and thence down the back side thereof. 7

Directly under the hollow of the baffleplate is mounted a tubulargas-burner 19, its front end resting on the inclined extension 14;, andits rear end on a prop 20. The burner is preferably made elliptical incross section, and is pierced at the sides with a multitude of smallholes 21 to serve as gasjets. Near the rear end an elbow 22 dependsthrough a hole 23 in the casting 9, the hole being enlarged adjacent tothe elbow, so as to supply air for combustion to the burner. A similarhole 24 is provided near the other end of the burner. The elbow of theburner connects with a service-pipe 25.

The course of the air is indicated by feathered arrows, and that of theproducts of gaseous combustion, by thin, unfeathered arrows.

The construction admits of the use of either fuel at will, and withoutthe shifting of a damper, or any other part of the stove or oven inchanging from one kind of fuel to the other. The openings 1n the ovenfor the circulation of the gaseous heat do not in the least prevent orretard the proper heating of the oven, while the location of the burner,inside the oven, but screened from its contents by the bathe-plate,tends to give it very rapid action in heating, and the highestefiiciency in the maintenance of the temperature.

It is to be noted that the air inlets which support the combustion ofgas have no communication with the passages for the products of solidfuel combustion, consequently there is no leakage of smoke,'noranytendency on their part to retard the regular draft of thestove.

Having thus described our invention, we claim:

1. In a range having an elevated oven connecting with the rangecombustion cham' ber by a vertical flue, an oven having an outer chambercommunicating at the bottom with said flue, and an inner chamber spacedaway therefrom at the bottom and sides, a

double bottom for the inner chamber, the

lower one inclining upwardly from a deeper central depression crossingsaid flue from front to back of the oven, a long gas-burner setrelatively central to said depression, and a superimposed battle-plateadapted to spread the gas flame toward the sides of the oven parallelwith the burner, the upper bottom having openings for the products ofgaseous combustion. Y

2. In a range. having an elevated oven connecting substantiallycentrally with the range combustion-chamber by a vertical flue, andhaving an outer chamber and an inner chamber spaced away therefrom atthe bottom and sides, a double bottom for said inner chamber, comprisinga Hat working bottom, pierced to admit gaseous products of combustion, abaflle-plate thereunder extending from front to back and inclinedupwardly toward its other sides, a long, tubular gas-burner mountedcentrally thereunder, and a lower bottom below said burner, havingupwardly inclined sides springing from a deeper middle depressionextending across said fiue,and provided with air inlets closed to. theproducts of combustion from the range below. I Y

In a range having an elevated oven composed of outer" and inner chambersspaced apart at bottom and sides for the passage of products combustionfrom the range, a flue extending vertically from the rangeto the ovenbottom, a double bottom for the inner chamber of theoven, the lower onehaving a middle depression extending from front to back of the oven,with upwardly inclined wings springing therefrom.

air inlets therefor closed to said products of combustion, a gas-burnerextending lengtlr wise of said depression, with a connecting elbowthrough one of said inlets, a super imposed inner bottom for the oven \lh 1nlets for gaseousproducts of combustion, and outlets thereforisolated from any other products of combustion.

An. oven for ranges, comprising an outer and an inner chamber, spacedapart for the passage of products or combustion the inner chamber havinga double bottom, of which the lower has a middle trough or depression,with sides upwardly inclining therefrom, a tubular gas-burner mountedlengthwise of the trough, and a flame-spreading battle-plate over theburner and below the upper bottom. 7

In testimony whereof we aliis: our signatures in presence of twowitnesses.

ERNEST O. HOWLE. JGSEPH E. LEONARD. v l itnesses F. WV. Anirsrnoivo, .J.M. ST. JOHN.

